19855342 has 16 divisors (see below), whose sum is σ = 33762960. Its totient is φ = 8681472.

The previous prime is 19855333. The next prime is 19855349. The reversal of 19855342 is 24355891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19855349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19603 + ... + 20590.

It is an arithmetic number, because the mean of its divisors is an integer number (2110185).

Almost surely, 2^19855342 is an apocalyptic number.

19855342 is a deficient number, since it is larger than the sum of its proper divisors (13907618).

19855342 is a wasteful number, since it uses less digits than its factorization.

19855342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40227.

The product of its digits is 43200, while the sum is 37.

The square root of 19855342 is about 4455.9333477959. The cubic root of 19855342 is about 270.7857404234.

The spelling of 19855342 in words is "nineteen million, eight hundred fifty-five thousand, three hundred forty-two".